How to get Current tenperature?

So i found this code and modified it a bit to show all tempertures in the day.

function weathertest2
clc
readChannelID = 12397;
temperatureFieldID = 4; 
readAPIKey = '';
[tempF,timeStamp] = thingSpeakRead(readChannelID,'Fields',temperatureFieldID,'numDays',1,'ReadKey',readAPIKey);
[maxTempF,maxTempIndex] = max(tempF);
[minTempF,minTempIndex] = min(tempF);

timeMaxTemp = timeStamp(maxTempIndex);
timeMinTemp = timeStamp(minTempIndex);

display(tempF,'Temperature');
display(maxTempF,'Maximum temperature for the past 24 hours is');
display(minTempF,'Minimum temperature for the past 24 hours is');
display(timeMaxTemp,'Max time stamp');
display(timeMinTemp,'Min time stamp');
end

But I want this code to be able to tell me the current temperture now (or the minute I asked) is there a way to show that?

Thank you

Answer 1

[darova]

Use interp1

t0 = input('Enter time:\n');
if min(timeStamp)<t0 && t0<max(timeStamp)
    temp0 = interp1(tempF,timeStamp,t0);
    disp('temperature is')
    temp0
else
    disp('Wrong time')
end

[Rainaire Hansford]

Well How should i write time

[darova]

Write where to?

[Rainaire Hansford]

you have to = input(......

How should I write the time? I tried 05:24:00 or format like it but it keeps coming up with error.

"Undefined function or variable 'timeStamp'."

[darova]

Try string format

s = input('enter the time','s');
num = datenum(s);

[Rainaire Hansford]

Yeah that not working either. At the same time im not sure what num is for?